Year
Accumulated temperature (°C)
Sensitization rate to pollen (%)
Sensitization rate to pollen (%)
Sensitization rate to pollen (%)
Sensitization rate to pollen (%)
Sensitization rate to pollen (%)
Sensitization rate to pollen (%)
Oak Hazel Pine Birch Alder Willow
1998 206.35 4.7 4.0 3.2 4.2 2.6 3.8
1999 153.80 5.1 3.5 3.3 4.5 4.3 4.7
2000 163.60 4.9 3.1 5.1 4.8 3.3 3.7
2001 140.55 5.3 3.8 4.3 5.1 3.8 4.3
2002 158.85 4.8 4.3 5.4 4.8 4.6 4.7
2003 133.85 5.0 4.1 5.8 5.5 3.8 3.6
2004 170.15 4.5 3.8 4.8 5.3 5.7 3.2
2005 144.20 5.4 3.2 5.5 5.8 6.2 3.5
2006 218.50 5.2 4.7 6.3 5.4 5.9 3.8
2007 130.45 5.7 4.4 4.8 4.6 5.6 4.4
2008 102.35 5.2 5.2 5.7 5.3 6.4 4.2
2009 170.75 5.8 4.8 6.0 5.8 6.5 3.4
2010 105.55 5.5 5.1 6.2 5.7 5.2 4.3
2011 163.35 5.6 6.5 6.2 6.5 6.2 6.5
2012 138.35 7.6 7.3 7.7 7.3 8.7 7.3
2013 189.80 8.5 7.3 8.3 6.3 7.5 6.4
2014 264.30 9.3 9.5 7.3 8.3 8.4 7.2
2015 257.70 9.6 8.7 8.2 9.4 9.7 8.5
2016 245.20 9.9 8.5 8.5 9.7 9.5 8.5
2017 252.90 9.2 8.3 7.5 9.9 8.5 7.3
2018 244.85 9.5 7.6 8.1 8.4 7.4 8.4
2019 251.85 9.8 8.1 8.7 8.7 8.1 8.3
Mean ± SD 182.14±52.02 6.64±2.03 5.72±2.06 6.22±1.63 6.42±1.82 6.27±2.03 5.45±1.93
Correlation coefficient (r, p<0.05)* Correlation coefficient (r, p<0.05)* 0.71 0.66 0.53 0.69 0.53 0.64